Copyright (c) Digital Equipment Corporation 1996, 1998. All rights reserved.

PRODUCT:  DIGITAL DEC PL/I for OpenVMS Alpha, Version 4.0A-1
          DIGITAL VAX PL/I, Version 3.5-124

OP/SYS:   DIGITAL OpenVMS Alpha, Version 6.2
          DIGITAL OpenVMS VAX, Version 6.2

SOURCE:   Digital Equipment Corporation


SYMPTOM:

The PL/I compiler uses packed alignment by default.  The /ALIGN qualifier
(or the /DATA qualifier for DEC PL/I for OpenVMS Alpha) may be used to
specify the alternative natural alignment.

Some of the include modules in SYS$LIBRARY:PLI$STARLET.TLB declare
structures which have a different layout than what was intended if
compiled with natural alignment.  For example:

    $ TYPE test.pli
    %include $fabdef;
    test : procedure options(main);
        declare 1 fab like fabdef;
        put edit('size(fab) = ', size(fab))(a,f(3),skip);
    end test;
    $ PLI test
    $ LINK test
    $ RUN test
    size(fab) =  80
    $ PLI/align test      ! or, OpenVMS Alpha only, $ pli/data test
    $ LINK test
    $ RUN test
    size(fab) = 104


DIGITAL RESPONSE:

UniPrise[TM] Engineering has acknowledged this problem and plans to
address it in a future release.


WORKAROUND:

Check if the build procedures uses the /ALIGN or /DATA qualifiers.
Compile with the default packed alignment instead.


[TM]  UniPrise and the UniPrise logo are trademarks of UniPrise Systems
      Incorporated.

All other trademarks and registered trademarks are the property of
their respective owners.

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